Quick answers
- Does Hong K. Kim accept Medicare assignment?
- Medicare's clinician data says Hong K. Kim may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Hong K. Kim see?
- In 2024, CMS data shows 366 Original Medicare patients and 403 services for Hong K. Kim. This counts Original Medicare only and measures volume, not quality.
- What is Hong K. Kim's NPI number?
- 1356541957. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Hong K. Kim, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 366 |
|---|---|
| Services billed to Medicare | 403 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)227 services
- Emergency department visit with moderate level of medical decision making (99284)119 services
- Emergency department visit with low level of medical decision making (99283)31 services
- Critical care, first 30-74 minutes (99291)14 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Diabetes47%
- Depression43%
- Chronic kidney disease42%
Hospitals where Hong K. Kim works
Medicare's Facility Affiliation Data lists Hong K. Kim at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Johns Hopkins Howard County Medical CenterColumbia, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210048
- Mercy Medical Center IncBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210008
Practice locations
Addresses where Hong K. Kim is enrolled with Medicare (CMS data updated October 2, 2026).
- 4940 Eastern AveBaltimore, MD 21224
- 5755 Cedar LnColumbia, MD 21044
- 5759 Cedar LnColumbia, MD 21044
Group practices
Medicare enrollment lists Hong K. Kim as a member of this group (CMS data updated October 2, 2026).
- Johns Hopkins University2,909 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Other clinicians in Johns Hopkins University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1356541957 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians